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The persistence of the coat color polymorphism melanism has been reported for several tropical felids, but its evolutionary advantages remain an active area of research. Few publi…

The monotypic rodent Mindomys Weksler, Percequillo & Voss, 2006 (Cricetidae, Sigmodontinae) is one of the rarest members of the speciose tribe Oryzomyini. As this species is restr…

Anthropogenic threats have increasingly isolated the populations of Mazama temama (Erxleben, 1777) and limited the gene flow in this species. Knowledge of the phylogeographic stru…

Wetlands currently have high rates of degradation, with more than 70% lost globally. In the central Monte Desert, Argentina, they are a scarce and limited resource for the biodive…

The parasitic copepod Gauchergasilus euripedesi (Montú, 1980) Montú & Boxshall, 2002 was described from plankton samples and specimens found in four fish species from the estuarin…

Habitat selection is the process whereby individuals preferentially use, or occupy, a non-random set of available habitats. At the same time, nest site selection is defined as the…

Anthropogenic habitat fragmentation directly affects ecological processes, leading to negative biodiversity impacts for insects and other biota. Increased edge effects are one con…

Intense hunting pressure and habitat loss have significantly reduced populations of the lowland tapir Tapirus terrestris in southern Brazil. Remaining individuals inhabit mainly l…

Although there are studies on certain aspects of the feeding ecology of several species of Neotropical parrots, there is scarce ecological information about Pyrrhura molinae – a P…

The study of biodiversity is a fundamental step to develop conservation strategies. Reptile populations are immersed in a global crisis, due to anthropic disturbances. Almost the …

The study of forest regeneration allows the diagnosis of conservation status of fragments and estimating population parameters that are essential for management projects. This stu…

The northern coast of Honduras is potentially covered with tropical rainforests, reaching from the Caribbean Sea up to the cloud forests of the Pico Bonito summits. Therefore, it …

The prawn Macrobrachium amazonicum has been considered a successful colonizing species of freshwater environments beyond its native range; however, information on the distribution…

Passiflora L. belongs to the family Passifloraceae sensu stricto, and comprises 700–750 species. There are approximately 161 known species of the family in Brazil, of which 153 be…

Arinosaster patriciae gen. nov. et sp. nov. is the second continental sponge registered for a subterranean environment (cave habitat) in Brazil and the Neotropical Region. The spo…

Animal movement has an important role in individual performance, species reproduction, population demography, and conservation, especially in fragmented landscapes. The distance m…

The Coffee Region of Colombia is one of the most representative areas of the country due to its cultural appeal. 200 of the 528 mammal species in the country occur in this region.…

Two iconic and charismatic species that inhabit the northern Andes of South America are the Andean bear (Tremarctos ornatus) and the Mountain tapir (Tapirus pinchaque). Both speci…

Activity patterns of species are related to their physiology, their behaviour and the environment and can change in response to different factors, such as interactions between spe…

Climate change may have significant impacts on amphibian diversity due to alterations in microhabitat conditions where these species occurs. Understanding the abiotic factors asso…

The aim of the research was to determine the number and distribution of the Rufous-banded Owls Ciccaba albitarsis in a cloud forest on the northern slopes of the Andes. The study …

The Spectral Bat (Vampyrum spectrum) is classified as Near Threatened by the International Union for Conservation of Nature. In Colombia, it has not been included in any risk asse…

Two populations of Plectrohyla guatemalensis from two different sites in Sacatepéquez, Guatemala, were monitored for three consecutive rainy seasons, and noteworthy reproductive b…

Even at the local scale, environmental changes due of anthropogenic actions represent a source of disturbance in terrestrial ecosystems, forcing species to respond according to th…

The lesser long-nosed bat (Leptonycteris yerbabuenae Martínez & Villa-R, 1940) is a specialized nectar feeding species found from southern USA to Nicaragua in Central America, mos…

The Estação Biológica Santa Lúcia (EBSL) is one of the oldest reserves in Brazil, used as a research site since 1939 by the naturalist Augusto Ruschi. It is an Atlantic Forest fra…

The presence of Parachromis managuensis has been reported for the first time in the Tres Palos Lagoon, State of Guerrero, on the coastal Lagoon of the Mexican Pacific slope. Two s…

Porcupines of the genus Coendou are among the least studied mammals in the Neotropics. The Stump-tailed Porcupine, Coendou rufescens, is distributed in the Andean region from Colo…

Electrostrymon denarius is the first mushroom-feeding butterfly caterpillar discovered in the New World. It belongs to the Calycopidina, a subtribe of lycaenid butterflies whose c…

To date, records of predation on Baird’s tapir (Tapirus bairdii) by jaguars (Panthera onca) were anecdotal and did not allow for differentiation regarding whether the animal had b…

The re-discovery of Catasetum mojuense A.T. Oliveira & J.B.F. Silva (Orchidaceae), an Amazonian species described in 1999 from the State of Pará, Brazil, is reported. In addition …

Studies on spatial occupation are fundamental to understand amphibian communities. The aim of this study was to record information on the spatial distribution of anurans in the Te…

Community structure is strongly influenced by positive interactions between species. Detecting and describing these interactions is essential in the study of communities. Dolichot…

Aberrant colored plumages in birds are not uncommon events in nature. These cases might be associated with genetic, environmental and nutritional factors, the presence of parasite…

In Central America, Vampyressa is represented by two species, Vampyressa elisabethae and V. thyone. The latter is the only representative of the genus in Honduras and the most rec…

Fragmentation and loss of natural habitats has reduced biodiversity in neotropical ecosystems. The restinga, a phytophysiognomy of the Atlantic Forest, has lost much of its origin…

Philodryas agassizii is an endangered snake of shrubland and grasslands well preserved in Argentina, Paraguay, Brazil, and Uruguay. In the southeastern area of its range, this sna…

Despite advances in recent decades, the Atlantic Forest of northeastern Brazil is still one of the least studied regions of the country, regarding, for instance, the bat fauna. Th…

The Rivulidae fish family, which includes Neotropical seasonal killifishes, is one of the most diverse taxonomic groups in the aquatic systems of Caatinga in Brazil. Cynolebias an…

Paso Centurión is one of the most diverse areas of Uruguay. It is legally protected at local and national level, however, there are different interests competing for its land use …

As urban areas expand, some species of diurnal birds of prey occupy these habitats, and many establish viable populations. The objectives of this study were to: (1) survey the spe…

Ageneiosus inermis is the largest species of the family Auchenipteridae (Siluriformes) and has a primarily piscivorous diet, although no comprehensive data are available on the ha…

Even though there have been reports of anomalies in the colouration of several species of neotropical mammals, these events are considered to be rare within natural populations. H…

Clytoctantes alixii is a bird that lives on the edges of old-growth, secondary and cleared forests undergoing regeneration and presents a distribution restricted to Colombia and V…

Defaunation, the decline in animal species and populations, is biased towards large-bodied animals that have unique roles as dispersers of large seeds. However, it is speculated t…

In this work, the microhabitat use and activity patterns of two lizard species with sympatric distribution were evaluated in a dry forest fragment within the department of Sucre, …

In this paper, we analyze the richness, abundance, diversity and trophic guilds in a mine (La Mina) and two caves (El Apanguito and Cerro Huatulco) in the municipalities of Pluma …

The widespread occurrence of marine gastropods in coastal regions is a straightforward evidence of successful adaptation to different environments. In the Caribbean Sea, as one of…

Bats represent a key group in tropical forest dynamics, given their participation in ecological interactions that lead the regulation of these forests. They are also sensitive to …

Among the various applications of phytosociology, the evaluation of natural regeneration is of great importance, mainly because it provides insights for ecological restoration. Th…